While watching this conversation, I've some comments: a) The kernel only prints a backtrace. It is not an OOPS or a BUG(). It is just a backtrace because the message "mtrr: your BIOS has set up an incorrect mask, fixing it up." is printed using the WARN_ONCE() macro. Thus, I don't see how it can be classified as a kernel bug. At worst, the bug will have to do with using WARN_ONCE.
b) Perhaps you could try using "nopat" as kernel argument. I believe that since PAT is used by fglrx, mtrr should have no effect (no? - I'm no expert), but who knows. Also, play with fglrx's argument for pat. c) Perhaps try adding: Option "NoMTRR" to the screen section of xorg.conf for testing. If (b) works then this may be a kernel bug, irrelevant with the backtrace. if (c) works then this *may* be an Xorg bug. -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]

